CVE-2026-89904
High
Description
In the Linux kernel, the following vulnerability has been resolved: LoongArch: Fix acpi_package_ids[] array overflow With LoongArch virt machine, a typical setting is one core per socket, there will max 256 sockets (packages) on one VM. With PPTT acpi table, array acpi_package_ids[] will be overflowed. Here change the array size of acpi_package_ids[] with the max value of MAX_PACKAGES and KVM_MAX_VCPUS.
SeverityHigh
CVSS8.4
Exploit probability—
Product
Linux
PublishedSep 16, 2026
First seenSep 16, 2026
How to fix
Update
- Linux Linux0195e04b1eec8fb00e2db9c5e55655a3f5e76f60, d3fd094c13c6d0b74f246461ca4cf427d539c8e8, 6311b8c471afa33c18adbe4eb16f862936b71ca3, 2a2367d46d7a4ee4122b7a86e57125542dbbe963, 6.12.110, 6.18.51, 7.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | f18992be262d6515c94bf4bf6ce7598135076771 ≤ v < 0195e04b1eec8fb00e2db9c5e55655a3f5e76f60, 4427a33faabb4b81511b99dfee18ce0a38b5b5df ≤ v < d3fd094c13c6d0b74f246461ca4cf427d539c8e8, 4e8f58620f6717f72f3d88a2c8f25c0c656d0ba7 ≤ v < 6311b8c471afa33c18adbe4eb16f862936b71ca3, 4e8f58620f6717f72f3d88a2c8f25c0c656d0ba7 ≤ v < 2a2367d46d7a4ee4122b7a86e57125542dbbe963, 496bc868d9066e034787aa14b8ad6c23e77b51ef, 6.12.101 ≤ v < 6.12.110, 6.18.42 ≤ v < 6.18.51, 7.1.6 ≤ v < 7.2, 7.2 | 0195e04b1eec8fb00e2db9c5e55655a3f5e76f60, d3fd094c13c6d0b74f246461ca4cf427d539c8e8, 6311b8c471afa33c18adbe4eb16f862936b71ca3, 2a2367d46d7a4ee4122b7a86e57125542dbbe963, 6.12.110, 6.18.51, 7.2 |
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